Table of Contents 1. Introduction for Signs ..............4 2. Introduction ..................5 2.1 Preface ..................5 2.2 PV Grid-connected Generating System ........5 2.3 How to Use This Manual ............5 3. Safety Instructions ................. 6 4. Overall Introduction ............... 7 4.1 Circuit Structure ..............
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7.4.1 Input mode ..............21 7.4.2 Standard for electric network ......... 21 7.4.3 Remote CTRL ..............21 7.4.4 Working parameters ............22 7.4.4.1 Starting-up voltage ..........22 7.4.4.2 Starting-up timelag ..........22 7.4.4.3 Low voltage of electric network ......23 7.4.4.4 High voltage of electric network ......
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7.6.4 Generated energy of that day .......... 31 7.6.5 Generated energy of that week ........31 7.6.6 Generated energy of that month ........31 7.6.7 Generated energy of that year ......... 32 7.6.8 Gross generation ............. 32 8. Installation ..................33 8.1 Overview ................
1. Introduction for Signs In order to make a better use of this manual, please read the following sign explanation carefully. Warning! This sign indicates that it may cause danger to safety of users and/or attentions or instructions for possible serious damage to hardware.
2.1 Preface Dear users, thank you for using photovoltaic grid-connected inverter products manufactured by Kstar which is experienced in development of photovoltaic grid-connected generating sets. We hope this product can meet your demands and welcome you to put forward more suggestions on performance and functions of this product.
company. Please read this manual carefully prior to use of this product and store it properly in a place where it is convenient for installation, operation and available for maintenance personnel. 3. Safety Instructions ► Please read this manual carefully prior to installation. This company assumes no responsibility for quality assurance upon equipment damage due to installation failing to follow instructions in this manual.
4. Overall Introduction 4.1 Circuit Structure Figure 2 shows main circuit of KSG-10K/12K5/15K/17K/20K inverter by which the direct current is input via three-phase full- bridge circuit and transformed into sine-wave current through filter and output to power grid. To make the photovoltaic array generate in maximum power, the new type power devices are adopted for this machine and the advanced MPPT algorithm is used at the DC side.
1. DC Input 3. RS-232 4. RS-485 (Option) 6. WIFI port 2. AC OUTPUT Figure 3: Interface of KSG-10K/12K5/15K/17K/20K Inverter Instructions for Interface ■ ► 1: DC Input: DC input terminal, connected to positive and negative electrode input of photovoltaic array respectively.
Prior to grid connection of the inverter, please confi rm if the wirings among input side of inverter, PV arrays, output side and power grid are all correct. Three kinds of modes are optional for connection between DC input side of KSG-10K/12K5/15K/17K/20K grid- connected inverter and PV arrays: Installation and Opertion Manual...
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► Independent input mode: three groups of different PV arrays may be connected to input end of inverter and independent MPPT controller is available for each group of PV arrays to control grid- connected operation. Figure 4: Independent Input Mode ►...
The inverter will cut away from the grid upon discovery of any abnormal condition during the grid-connected process. 5.4 Error and Alarm The error and alarm information of KSG-10K/12K5/15K/17K/20K photovoltaic grid-connected inverter refer to the following table: Table 5.1 Working conditions and fault/alarm message...
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Generate AC power and feed to Normal Power Generation Normal municipal Grid after self-test is completed Monitoring parameter display Instant Power Rate XXXX W/ Instant power rate & accumulated & Volume Of Power XXXXX Kwh power generated Generated Voltage And Current Of DC: XXX.X Voltage and current from PV arrays PV1/PV2/PV3 Input...
DSP communication faulty on DSP Operation Fault control board. DSP communication faulty on DSP Communication Lost F32 control board. Table 5.2 Alarm Information Alarm message Alarm code Solutions Alarm message for speed low of Fan_ Speed Low Of Fan_A Alarm message for speed low of Fan_ Speed Low Of Fan_B Alarm message for speed low of Fan_ Speed Low Of Fan_C...
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(1)Please check the setting of input mode Input Current High (2)Disconnect PV input and restart the inverter and check whether (F08) fault still exists. (3)Contact with your local distributor if the fault still exists. (1)Disconnect PV input and restart the inverter after few minutes Inverter Current and check whether fault still exists.
6. Human-machine Interface 6.1 LCD controlled panel There are 4 buttons and 4 LEDs installed on the panel of KSG- 10K/12K5/15K/17K/20K inverter, as shown in Figure 7. Figure 7: LCD Controlled Panel Table 6.1 Description for LED light LED light Defi nition Indicator light for waiting of paralleling in WAIT NORMAL...
6.2 Networking for monitoring The inverter is provided with various kinds of communication modes, when the user requires to monitor the running information of photovoltaic power generation system, we will offer the following design scheme for monitoring system. The maximum distance of RS485 communication is about 1000m, and device number should not be more than 32.
7. LCD Operation Menu 7.1 Initialization Interface Explanation After starting-up of inverter, During initialization… LCD will fi rstly enter this interface, and please wait! deliver parameters required by operation of the machine to DSP. 7.2 Major cycle menu After initialization, LCD will enter a major cycle menu to display running information of the inverter in a circulating mode, including 10 interfaces for network voltage, frequency of electric network, etc.
7.3 User interface Interface Description Select corresponding options by pressing -----User----- UP or DOWN button, enter “setting”, → 1:Setting “inquiry” and “statistics” menus by 2:Inquiry pressing ENTER button. Press ESC to 3:Statistics return major circulating menu. 7.4 Setting Interface Description After entering into the setup interface, t h e s y s t e m w i l l p r o m p t t o i n p u t -----Password-----...
7.4.1 Input mode Interface Description Press UP/DOWN button to move corresponding option. Then confirm ----- Input mode ----- the selected option and enter interface → 1:Independent of please starting-up again (refer to 2:Parallel connection 7.4.4.7) by pressing ENTER button. 3:Mixed connection Press ESC button to cancel choice and return back setup interface (refer to 7.4).
7.4.4 Working parameters Interface Description Press UP/DOWN button to move corresponding options, press ENTER -- Working parameters-- to enter into the selected menu; return → 1:Starting-up voltage back setup interface (refer to 7.4) by 2:Starting-up timelag pressing ESC, there are 6 options in 3:Low voltage of total, including starting-up voltage, electric network...
7.4.4.3 Low voltage of electric network Interface Description Press UP/DOWN to increase or decrease the input figure, confirm --GRID VOLT LOW-- input and enter into interface of please Input: starting-up again (refer to 7.4.4.7) by Unit: pressing ENTER button; press ESC to cancel input and return back working interface (refer to 7.4.4), input figure is between 150 and 210.
7.4.4.6 High frequency of electric network Interface Description Press UP/DOWN to increase or decrease the input fi gure, confi rm input --- High frequency of and enter into interface of starting- up again (refer to 7.4.4.7) by pressing electric network --- ENTER button;...
7.4.6 485 baudrate Interface Description Press UP/DOWN button to move corresponding options. And confirm ------SELECT------ selected option and return back the → 1:2400 bps setup interface by pressing ENTER button (refer to7.4), press ESC button 2:4800 bps to cancel choice and return back setup interface (refer to 7.4);...
7.4.9 Date/time Interface Description Press UP/DOWN to increase or decrease the input fi gure, press ENTER -----Date/time----- button to move the cursor backwards, Date: 2000-01-01 confirm input and return back setup Time: 02:43:03 interface (refer to 7.4); and move the Week: 6 cursor frontward and return back setup interface (refer to 7.4)by pressing ESC...
7.4.11 Password setting Interface Description This interface will be used to alter ----- Password ----- password when entering into the setup Old one: XXXXX interface (refer to 7.4). New one: XXXXX Press UP/DOWN to increase or Confi rm: XXXXX decrease the input fi gure, press ENTER button to move the cursor backwards, confirm input and return back setup interface (refer to 7.4);...
7.5.1 INV MODEL Interface Description This interface displays product Model. -----Inverter----- of the inverter. KSG-10K UP/DOWN button is invalid, ENTER button is invalid; and press ESC button to return back the inquiry interface (refer to 7.5). 7.5.2 MODEL SN Interface...
7.5.4 RECORD Interface Description This interface displays record and -----Rec( 35)----- its occurring time, including two 1:F01 types of fault and warning alarm, its Date: 2011-10-21 content will be described in codes, Time: 16:35:26 with total number of 500 at utmost, after exceeding this extent, the one with earliest time will be covered.
7.6 Statistics Interface Description This interface is used to select various ----- Statistics ----- options for statistics. UP/DOWN → 1:Time statistics button is used to move corresponding 2:Times of options, press ENTER button to enter paralleling in the selected menu; and press ESC to 3:Power peak return back the user interface (refer to 7.3), there are 8 options, including...
7.6.3 Power peak Interface Description This interface displays history power -----Power peak----- peak and today power peak of the After inverter. UP/DOWN button is invalid, starting-up: 10645 and ENTER is also invalid; press ESC That day: 9600 button to return back statistics interface Unit: (refer to 7.6).
7.6.7 Generated energy of that year Interface Description This interface displays generated -----This year----- energy of that year. UP/DOWN button Numerical value: 30000 is invalid, and ENTER is also invalid; Unit: press ESC button to return back statistics interface (refer to 7.6). 7.6.8 Gross generation Interface Description...
Therefore, please inspect it before installation. If any damage is detected, please contact with the transportation company or Kstar directly. We will provide you with the best and quickest service after you provide the photo of damaged part.
8.2.2 Mechanical dimension We offer the dimension of case aiming to create the convenience for your mechanical installation of KSG-10K/12K5/15K/17K/20K inverter. The mechanical dimension of KSG-10K/12K5: Champagne: 506×700×210mm in width×height×depth. Its weight is 41kg; Silver: 506×695×204mm in width×height×depth. Its weight is 37kg.
8.2.3 Packing Please check carefully before opening the package of the equipment. It may cause the inverter damage in case the packing material is found damage, please contact with forwarder for claim. If necessary, Please feel free to contact us. 8.2.4 Installation of Inverter Please read the following installation instruction before you start your work so as to achieve best effect of the inverter.
8.2.5 Installation Location The inverter is suitable to be installed on vertical or backwards tilt wall as shown above, the tilt angle should be less 20 ° . Don’t install inverter on forward tilt wall. Don’t install inverter on horizontal wall. Mount the inverter at height same as eyesight for easy operation and data reading.
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Clean the dust inside the holes, and insert expansion pipe into the holes. And then tighten 4 screws into upper four pipes, After tightening, gap between the nut and the wall must than 10mm at least. Hang the inverter onto the 4 tapping screws, and check both sides and keep the inverter in right position, then tighten four tapping screws as shown in following pictures.
Warning! Don’t place KSG-10K/12K5/15K/17K/20K inverter with infl ammable materials. Warning! The temperature of some parts of KSG-10K/12K5/15K/ 17K/20K inverter is very high. Avoid contacting with them. 8.3 Electric connection 8.3.1 Requirement for electric installation ►...
Connect the “N” of alternating current output with “N” of grid; ► The earth terminal is connected with the land via guide line. ► Confi rm that the wiring is fi rm. Warning! Assure there is no live part of KSG-10K/12K5/15K/ 17K/20K inverter during electric wiring. Installation and Opertion Manual...
8.3.3 Wire for direct current connection Warning! The open-circuit voltage of photovoltaic array should not exceed 900V, or the equipment will be damaged. Measure the open-circuit voltage of photovoltaic array with multimeter when connecting. Warning! The positive pole and negative pole of voltage for photovoltaic array cannot be reverse, which can be measured with multimeter.
8.3.4 Wire for communication connection The communication method of RS485 bus is adopted for this machine when PC is used for monitoring of signal or multiple grid-connected inverters and the RJ45 terminal of terminals for inverter is the port that is used for connection of internal 485 Bus. The monitoring can be fulfi...
9. Technical Data Table 9.1 Technical Data Input Data KSG-10K KSG-12K5 KSG-15K KSG-17K KSG-20K Maximum power of battery 12KW 14KW 17KW 19KW 22KW Maximum voltage of direct 900V current Rated operational voltage 580V Tracking scope of voltage 250V~850V Full load MPP voltage...
10. Appendix 10.1 Quality assurance The quality assurance for product of Kstar can be conducted only on the condition that invoice and date when customer purchases the product should be presented and the trade on the product is clear during quality assurance period.
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► Kstar will maintain or replace the product having fault with the new one free of charge when the fault is produced during quality assurance period. ► The unqualified product after replacing should be returned to Kstar. ► The reasonable period must be reserved by customer so that Kstar can repair the equipment having fault.